Question 388456
find GCF for 20a^3b, 32a^2b^2, and 12ab^3
GCF means "Greatest COMMON Factor" 
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GCF of 20,32,12 is 4
GCF of a^3,a^2,a is a
GCF of b,b^2,b^3 is b
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Therefore the GCF you want is 4ab
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Cheers,
Stan H.
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